Type-writing machine.



R. H. STROT'HERJ TYPE WRITING MACHINE; APPLIOATION FILED JULY 6, 1912.

.Y El R E m M mm .T 2 A m E G W N 8 L m m%% 1, W% Z 11.. H. STROTHER.

TYPE WRITING MACHINE.

- APPLICATION I'ILED' JULY 6, 1912. 1

1,046,893. Patented De0.10,1912.

3 SHEETS-SHEET 2.

WITNESSES; 'INVENTDRF; 71.7% Z Mm:

f 1-||'5 TATTEIRNEY,

STROTHER.

TYPE WRITING MACHINE.

APPLICATION FILED JULY 6, 1912.

Patented Dec. 10, 1912.

3 SHEETSSHEET 3.

'Montclair, in the CJI . reliable in operation.

- cally no additional mechanism whatever to iii vibrator mechanism ofvisibl Specification of Lettetslatent. Pat ted Do n 912, Applicationlneaj u e, 1512. Seriai No. 707,984: i To all whom it may concern:

Be it own that I, ROBERT H. S'rRo'rHER, citizen of the United States,and resident of county of Essexand State key 1s"partially depressed.Fig. .5 is similar of New Jersey, have invented. certain "new to ig. 1but shows the parts when the-kc and useful Improvements in Type-VVritingis fully depressed. In Figs. 3,1 and 5 Machines, of which the followingis a speci cation.

chines and more particularly-to the ribbon stripeof the-ribbon, the

p e typewriters. in normal position in Fig. e principal object of theinvention is to of a key depression in Fig. 7.

for varying the a reduced .scale and Figs- 2 to widthwise portionribbon: that is are onjafla-rger scale. Fig. 8 is aside view thrown bythe vibrator to theprinting point-.-

cans are also provided capable of an ad' h aving embodied therem amodification of ustmentthat'renders it inoperativeltomove' mylnventi'onin. which there is no, platen the l'lbbOll to print-mgposition, in case, '1t Sluft,-,;l*1g.t 1ss -a rear-view of the same, isdesired to several objects are attained ineansthat p is similar, aresimple In construct on and -pos1t1 ve' and except as to the p writer.r 1The invention is applicable with practi- The frame-work" of theRemington No.10 machine comprises base part 1, corner posts 2 and topplate 3, onwhich last are mounted suitable rails for a carriage, said'carriage'supporting a platen 4. This platen,

knownin the art, is mounted on having a roller that rides on a shiftrail 5, which shift rail is supported by two posts 6, which in turn aresupported by a shifting bar 7 and said shifting bar, is supported by twoposts 8, which are pivoted atthcir lower ends to the shift key levers10. Asthis shift mechanism is well lmmvn in the art it has been 1056machines wherem'the platen is shifted. In the present; instance I haveshown the inlied to a Remlngton N o. 10 typearranged to glve twoextents: of

I have'also shown a modificahavmg a nono t e above and other ends, myinven; shown only partially in theylraivings. By tion consists incertain features of constluceprcssinga shift kc the rear ends ofthe tionand combinations and auaiwements of levers 10 are, moved umvard, w i hmoves parts, al of which will be i'fully set forth up the framecomprising the bars "7 and 5 erein and particularly pointed out in theand the posts (i and 8, and said frame, when calms.

it is moved upward lifts the In the accompanying drawings, Figure 1 itsupper case position. is'a rear view 111 vertical section of sonnlch heprinting isett'ected by printing key of a typewriting machine as leversl1,-having printing keys Ll thereon illustrate my invention. and whichoperate suitable type bars. These view of some of the mechanism, partsbeing key levers also overlie a universal bar 12 F' which is hung at itsends by wires 13 from arms 14 projecting toward the reari'rom a rockshaft-'15, which at its ends is mounted on pivots 16. An arm 17 projectstoward the rear from the rock shaft 15 and is contion by full -line s.and in lower position by Fig. 3 but showing the mechanism when a .1nvertical section'of apart of atypewriter do mlmeograph work, Thesepartly; in section: "The mechanism shown in new parts, to portionsof-the Monarch type-,

nected by a link 18 with the escapement mechanism, not -shown;- whichmechanism .c0ntrols' the carriage feed. A spring 20 I connegted withthis arm 17, constitutes the.

I The.r1bbon mechamsmrcomprises two restoring. spring of. the universal'bar frame.

" spools '21.-from which the ribbon 22 is led *upward and over guides23' andia'cross the front of the platen where it is threaded throughai'IlbbOII vibrator The stem "of this vibrator is guidednotched-orslotted ears -25 of a supporting plate26 which is secured to thestationaryframework'.ofthe, machine-so as to leave the vibrator free-tobe slid up and downz A headed pin 27 pro-t t jects from the rear faceofthe'stem of the vibrator and is embraced "by 'a' slot 28 'Iormed inthe free end of a lever 30, which lever is connectedby a link 31 with anarm 32 projecting toward the rear from the rock shaft, 15. The lever isa floating lever,

pivoted at 33 to another lever 34,"w hich in turn is pivoted'at 35 tothe stationary framek work. These levers 30 and 34 can'be variedhavebeen given in the present instance has'" been determined to someextent,-at least',=by the construction of the-mgchine in which veryconsiderably. in theirs-details of eon-1 struction and the precise iform that they they are shown.

a branch 40 connected with the body-of said lever by a yoke piece' 41andthe-pivot'35 consists of two posts or studs project-ing'inward towardeach otherfrom the bracket parts 36 and 37. The pivot-33 consists ofapin or axle passing through the lever 30 and entering both branlches ofthe lever 34. The link 31 is pivoted,to the lever 30 between the twobranches of the lever34. of advantage-in a shift machine because itenables the lever 30 to pass. at times through the piv otal axis of thelever 34. It will be'noted' that the pivot 33 is between the-pivot 35and the vibrator and that the free end of the lever 34 nornmlly standsas shown in Figs. 3 and C-ahove the free end of the lever 30 and behindthe stem of the vibrator. The

- parts are held in this position by::. spring isltdown v ar shiftin Inthe Remingtonmachine there is a i "m bracket 36 having .a dependingbranch""-37,{

Fig. 2', and secured .to-astatlonary front' late 38, which in turn isseeured-to'the type a'r'segment 39. I jmake 'the lever'34nwithi' -1 to5inclusive,

{I ni JQIIIO the lever' 30*1sarrestedJby'astop 44 mountedon the stop- 44it tends toi'." ivot 'abbutf said stop, thuszpulling upward o-nj the"pivot 33 and compelling the leve'rf34 to'stal'id' up" in the normalposition shown in Fig; l When a key is depressed'andthe link 31 movesdown,

the tens on of'thespring 42 at-fii'st tends to hold' the: free end ofthe lever 30 down against the-stop' 44' so that theefl'ect is to swingthelever 34 downward on its fulcrum 35. If, howeveqfsaid lever 341sarrested at any point thepivot 33 thenbecomes a fixed pivot andthe'jdownward motion of 1 the link 31 moves the end of the lever 30. up

ward; anditduring this upward motion the lever 30. will ofcoui'secarrythe ribbon vibrator with it; The parts are soproportioned that atthe bottom of a key stroke the two levers'30 and 34 occupya definite Irelative positionas shown in Figs; 5 and 7, but the actualq-positioncan'be any where he I tween ,thenormalposition otthe' lever 34 and'thenormalposition of the lever; 30.

" Inordento determinethe height to which ,th ribhon vibrator is;shifted, two stops 45 andf lfij-lareifprgvided. which can be thrownbetween; the levers34 and 30,

e front of' -the machine v ar. or'plate 47 which is his "'bar 7lay-means of screws48, threaded 'intosaidibar. 7 and pass- Said bar 47"anbeslid'to either one of three positions. When. it stands as shown in.Figs.

themechanism is set to write onv the upper'stripe of the ribbonubeoausethen: the lower stop; 45 is position to arrest thejtwo levers 30ahd134.f-Whn the stop 45 s set in operative position and a ,keyrisdepressed thefirst part of'the key depression moves the1everj34 'dOWllagainst the stop 45,- as shown in- Fig.4 This takes perhaps "somethinglike half of the key stroke. When, the lever 34 strikes the stop 45 thepivot 33 becomes a fixed. ivot and the lever 30 becomes a lever of thestorder. A continueddownward motion of the uni versal bar and of thelink 31 causes the free end. of the lveverp30 to rise to the (positionshown in Fig. 5 where it is arreste by the ,pin 27 striking against theunderside of the stop 45, which stop is, therefore, as it were,

pinched \in between the two levers. It will be seen that the vibrator isthrown upward positively and that-it is positively arrested when the pin27 encounters the. stop 45. It will also be seen that the tzperationtakes placejust the-same whether. e platen is in the uppercase'positionor the lowehc'aseposition. When the parts -are moved toupper case position, as shown in full lines in When in contact'with thea 15s51d l'stopsgconsist of ears ,:1nda1so the lever 3ft, which lastFig. 8, the s t ie ,vibrator upward to-the'same extentas the platen isshifted It also carries the to the same extent is pivoted to the leverat 33. a keyis operated with the parts in this upper case position thelever-34 will move down until .it strikes the stop 45, after whichthelever 30 will'move w upuntil arrested by said stop and the vibra t- 4.6is moved under the lever 34:- If, then, a

key be depressed said lever 34 will be arrest- 23 ed almost. immediatelyand the downward motion of the link 31 will beginalinost'immediately tomove the vibrator upward, and it will move itipwardfiuntil the pin 27 isarrested by the stop 46, as

also is the same whether the platen its upper case or in-its lower casepositlon;

so and 46 will moved 'out of levers 30 and such inoperative positions ththe universal bar will merely 34 to bev moved down almost is desired touse the machine for miineo- 4o graphing. c

in order to adjust the slide bar 47,.said. slide bar is formed as shownin Fig; l with a. vertical slot 5! into which a pin 52 ex-f tends froman arm .33 mounted on the rear end of a horizontal shal't 54, whichshaft extends to the front of the machine where it is provided with afinger button or milled head :35 for turning it. The shat't'fA may bejournaled in brackets 59 may be provided with in device and with anysuitable means for retaining it in any one of the three positions towhich it is intended that it be adjusted.

It will be perceived that by suitably manipulating the button 05 theribbon mechaany suitable indicat-' .nism can beset for eitherniimcographiug' or for writing on the upper st ripe ot' the ribbon orfor writing on the lower stripe ol the r bbon. 'lhe'adjustment ol thesaid 50 button 5-3 has no other client th'airto adjust. the slide "ti,which sliderarrics the stops 45 and 46. It will be noted that the ribbonvibrator can be caused to more to a groan-r or loss-' ex'tentto enablewriting to be done from either stripe or from neither stripe I i*kipaass carries the lever 30 a' n d shown in Figflt, It will readily beseen that this operation 56 and .57 and it of the" ribbon .case positionof the platen; that the control of the vibrat dr. is

functions are ohtained 'by extremely simple 'mechanism," the partsoperated by the universal bar consisting only of the link 31 and the twolevers 30 and 34L and the adjustable part consisting merely of the stops45an'd46,"" Figs. 8 and 9 show an adaptation of my invention to theBlonarbh. typewriter in winch the type bar segment is shifted andin-which the platen'has no shift-in movefigures 60' mental front plate62-which occupies part of the space betwee'nrthe type bar segment andtllQtOP plate. The- )latcn is represented at 63 andat 64 is the racketwhich supports the guide 65 and the ribbon vibrator 66, through whichthreaded the ribbon ($7. The lower end of the vibrator has a cross pin62' that plays in a slot in the free end 0 an operating lever 70, whichlever is pivoted: at 71 to a second lever 72, which last is pivotedt"o"tl 1e underside of the top plate as by .a screw 75. The lever-"isconnected by a bar frame in the in the Monarch machine and -hnkiszcontrolled by a spring 77 con necttal-tat one end to the link and atthe 7 other and at '78 to the lever 70. Said spring linltt ((lfwith; theuniversal manner .usual "ll ie perceived that the tension of the spring77 is exerted to hold both the levers 70 and 72 down at their forwardemlsfi 'llle lever. 70 is't'ormed with a branch 80 which extendsdownward. and thencedorward, as shown, so as to lie below the: level ofthree stops S1, 82 and 83 consist'iug'ofcars bent olf iron: a slide bar84., which slide bar is formed with slots 85 through which iass screws(1 that are threaded into the plate (32 from the rear thereof. Asshou'n'in Fin; 9, the arm 80 is offset so as to bringits lower enddirchtlv hcncafhthc levers T2. The stops 81, H2 and are arrangetluiithestcppcd formation Fig. 9: that is to say, they are an-mined one aboveanother higher stops being, each v to the stop below it.

The bar 84 can he means of a handle therefrom through a slot Said bar 8%is yielding'ly retained in any {one of three-positions by ineans of a.detent 1 spring adapted to engage at will with any i one of threenotches 91 in said bar 8% stands in the shown in and. the two right ofthe moved lengthwise by S7 pro ectiug forward at 73-to a hanger 74secured and in either upper or lower positive, and that these 23 cars(it to which 15 secured by screws a se::-

S8 in the plate 62.,-

f Fig. i.) and a key is operated and the link '7 6 is drawn down,

the first part of the key stroke will cause arrested by the stop 82..The remainder of a vent positively any motion of the vibrator' '40levers 70 and 72 in the second form, are two '45 in thenaction "of theribbon vibrator is shown prevents the lever (2 from moving] downward.The pivot 71 is thereforea fixed i pivot and the lever 70 acts as alever of the 5 first order, which is operated by. the link 76 untilarrested bythe arm 80 striking the underside of the stop 81, which stopwill then be pinched in between the two levers. The ribbon is thusthrown to its highest point and the actuated type liar will co-actwiththe lower stripe thereof. If .the bar 84' be moved one notch to theright in Fig. 9 the middle stop 82 will be brought into operat-iveposition. If, now, a keybe depressed 5 the lever 72 to move downwarduntil it is the strokewill cause the lever 70 to move upward until it isarrested by the same stop which positively arrests'the vibrator at pro-2 per position to write from the upper stripe of the ribbon. If the bar84 be moved another notch to-the right in-Fig. 9, the stop 83 will bebrought to operative position and it now a, key be operated the lever70, and

with it the vibrator, will not be thrown up to bring the ribbon toprinting position, the.

' whole motion of the link 76 being expended idly in moving the lever 72downward. Thestop 83 has no other function than to preat this time. I donot consider this stop 83' to be necessary but it can be employed ifdesired 'or if found advantageous, and itwill of course be obvious thata similar stop can be used if desired in the form of the invention shownin the other figures of the drawing.

It will be perceived that the levers 30 and 34 in the first form of myinvention and the parts connected together and with the print ing keysin such a way that-the sum of the motions of said two parts at a keystroke is substantially constant and that the variation brought about byvariable stopping means variably distributing suchconstant sum ofmotions between the two parts or levers. Stated in another way,.thesetwo parts or levers are given at each key stroke a definite amount ofrelative motion which may be variably distributed, between said twoparts. It will also be perceived that primarily ,it is the lever 34 inthe first form of myinvention and the lever in the second form that isarrested by the stop, a greater or less part of the keystroke being lostin moving this lever to the stop. It is not absolutely essential thatthe floatinglever be arrested by 60 said stop or by any positive stop.The action of the parts is rendered more positive and exact, however,byhaving said floating lever also arrested and with it the vibratoritself.

66 Variouschanges, other than tho'se spedihczftlly described, can bemade in the details 0 construction and arrangement without I departingfrom my invention;

That I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination'of pr nting keys; twoparts; connecthat .1

able stopping incansfor "variably 'distributmg vsuch'moti 11 between thetwo said .parts; and a rib on vibrator operated by said parts.

- 2'In a typewritinginachine, the combination of printing keys, twoparts connected together with reedom for relative movement, connectionsto saidkeys' for causing at a given stroke a definite amount of relativemotion between said parts, variable stopping means for variablydistributing such relative motion between the two parts, and a ribbonvibrator operated by said parts.

3. In a typewriting machine, the combination of printing keys, two keyoperated, relatively movable parts; variable stopping means cooperativewith oneof said parts, the extent of movement of th'e 'other' of saidparts depending upon the point of arrest of the stop-arrested part; anda ribbon vibrator operated by said parts.

4. In a typewriting machine, the combination of two relatively movableparts, a vibrator connected to one of said parts, means for variablyarrestin one of sand parts, and key operated means or imparting adefinite and constant extent of relative movement to the two said parts.

5. In a typewriting machine, the combination of two members connectedtogether for relative movement-and normall held a art, printing keys,means operated y ,said eys for drawing said members together, vari-;able stopping means capable of being interposed at differentpoints-between said members, and .a ribbon vibrator operated by saidmembers.

6. In a typewriting machine, the combination'of printing-keys, a pair oflevers jointed together, means operated by said keysfor imparting tosaid levers a definite extent of relative turning movement about theirpoint of juncture, variable stopping means for arresting said levers ina definite relative position, and a ribbon vibrator operated by saidlevers.

7. In a typewriting machine, the combination of printing keys, twolevers jointed together and one of them pivoted to the framework, 9.connection from the other; of said levers to said keys, variablearresting means for arresting said levers in adefinite relative positionbut in variable actual positions, and a ribbon vibrator operated by saidlevers; p

8. In a'typewriting, machine,'the combination of printingkeys, two.levers connected together, variable stop )ing means between hem, meansfor pine mg said levers to gether on saidstopplng means at a keystroke,

said levers. l;

9. In a typewritmgmachine, the combination of prmtmg keys, two leversconnected between their ends, one-of said levers being vribbon vibrato'rvariably of one of said levers being pivoted ona fixed pivot, operatingmeans connected with the corresponding end of the other lever, vari-:able stopping-means for said levers, and a ribbon -vibrator operated bysaid levers.-

' 1'1.,In a' typewriting machine, the combination of alever pivoted on afixed pivot, a floating lever pivoted to theflfirst mentioned lever,means for moving one end of said floating lever a definite distance,variable stopping means for the other said lever,

and a ribbon vibrator operated 'by the said levers. a

12. In a typewriting'machine, the combination of printing keys, :3,platen, means for shifting said platen to change the case,

two parts, connections betweensaid parts and to said keys whereby saidpartsare operated by said keys and such that the sum of the motions ofsaid two parts at a key stroke is substantially constant, variablestopping means for variably distributing such motlon between the twosaidparts, said stopping means being shiftable with said plateau, and

a ribbon vibrator operated by said parts.

In a typewriting machine, the combination of printing keys, two partsconnected together with freedom for relative movement, connections tosaid keys for caps ing at a stroke a definite amount of relative motionbetween said parts, variable stopping means for variably distributingsuch relative motion etween the two parts, a ribbon vibrator operated bysaid parts, a slnftable platen, and means for shifting saidvlln'ator andsaid stopping means with said platen.

14. in a typewriting machine, the combination of 'n'inting keys, ashit'tuble platen,

tipair of lovers jointed together and one oi said levers pivoted to afixed part, means operated by said keys for imparting to said levers adefinite extent of relative turning movement about their point ofjuncture variable stopping means for arresting said levers in a definiterelative position, a ribbon and a ribbon vibrator operatedby:

vibrator operated by said levers, and means for shifting said vibrator,the -iree ends of said levers and said stopping means with" means, tworelatively. movable parts, means operated by said keys for imparting a-1'elative motion to said parts but-said parts hemgfree to move togetherinde endently of means for determining the actual positions to whichsaid parts are moved by said keys, and a ribbon vibrator operated bysaid'parts. 16. In a typewriting machine, the combination of a. leverpivoted at one end to the framework, a floating lever pivoted to .thefirst mentioned lever scissors-wise, means connecting one end of saidfloating lever with said printing keys, a ribbon vibrator connected withthe other end of said floating lever, and variable stops that can beintersaid key operated means, varia )le stoppingposed between saidfloating'lever and the rst mentioned lever.

17. In a typewriting machine, the combination of a lever pivoted at one,end to the framework, a-floating lever-pivoted to the first mentionedlever scissors-wise, means connectingone' end ,of said floating leverwith said printing keys, a ribbon vibrator connected'with the other endof said fiOtlilllg,

lever, variable stops that can be interpos between said floating leverand the first men- I tioned lever, a shiftable platen, anda shift frameon which said variable stops are mounted. i

18. In a typewriting machine, the combination of printing keys, twolevers connected together, variable stopping means between' saidlevers-means for pinching said levers together on said stopping means ata key-.

stroke, and a ribbon vibrator operated by said levers, said stoppingmeans being capable ofbeing rendered inoperative 'and the constructionbeing such that said levers do not then move said vibrator; to printingposi- 4 tron,

19. In a typewriting machine, the combination of printing keys, twoparts, eonnections'between said parts and-to said keys,

and such that the sum of the motions of said two parts at a keystroke issubstantially constant, variable stopping means for variablydistributing such -inotion'betweentlie two said parts, and a ribbonvibrator operated by said parts, said stopping means being variable tocause said vibrator not to be moved to printing position.

20. In a typewriting machine, the combinationof printing keys, key 0erated rel-- atively movable parts, varia'b e stoppmg means cooperativewith one of said parts, the extent of movement of the-other of saidparts'depending upon the point of arrest of 115 whereby said parts areoperated by said he s operated by said the stop-arrested part, and aribbon vibrator parts, said stopping means eing capable of beingrendered inoperative to arrest said stop-arrested part andthe mechanismin that event to move the ribbon vibrator to printing ponation of aribbon carrier,

21. In a typewriting r nachinefthe combination of a ribbon carrier,vibrating means therefor comprising two connected levers, and ribbonstop mechanism comprising a -stop"adapted to be interposed at willbetween said levers. I

22. In a t ewriting machine, the .combi vibrating means thereforcomprising two connected levers, and 'a plurahty of ribbon stops, eachstop being adapted to cooperate at will with both said levers.

Copies of this patent may be obtained for being inoperative for actuatmgthe same at printing operation coinprisng a pair of levels jointedtogether, and

variable ribbon" stop mechanism adjustable separately from said leversand adapted to vary the other in mechanism is set to shorten the motionof one lever, the other lever has a longer motion. Si ed at the boroughof Manhattan, city of N e iv York, in the county of New York, and Stateof New July, A. D. 1912.

ROBERT H. STE-OTHER.

effect of one of, said levers on the York, this 5th day of Witnesses:

CHARLES E. SMITH, M. F. HANNWEBER.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.

such fashion that when said stop

